CN202344972U - Paper-plastic composite thin film - Google Patents
Paper-plastic composite thin film Download PDFInfo
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- CN202344972U CN202344972U CN2011203822832U CN201120382283U CN202344972U CN 202344972 U CN202344972 U CN 202344972U CN 2011203822832 U CN2011203822832 U CN 2011203822832U CN 201120382283 U CN201120382283 U CN 201120382283U CN 202344972 U CN202344972 U CN 202344972U
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Abstract
The embodiment of the utility model provides a paper-plastic composite thin film, at least comprising a first resin layer, a kraft paper layer, a second resin layer, a first adhesive layer, a barrier layer, a second adhesive layer, and a third resin layer. The paper-plastic composite thin film provided by the embodiment of the utility model has relatively high obstruction property and the mechanical intensity and relatively green and environment-friendly.
Description
Technical field
The utility model relates to a kind of packaging material, is specifically related to a kind of paper laminated film.
Background technology
Current, the laminated film that is used for the food-grade packaging material is mainly overall plastic film.
Under the overall situation of the packing development trend of environmental protection, energy-saving and emission-reduction, the raw material of packing plastic material derives from oil mostly, has the characteristic that discarded back is difficult for degraded, so can't satisfy the requirement of current development overall situation.Though occurred being applied to the material paper-plastic composite film of food-grade packing at present on the market; It is substrate by paper with the plastic sheeting of aluminizing, and main with being applied to packing of solid, frangible based food, the barrier property master of whole thin film material is with relying on the plastic film layers of aluminizing; But the aluminized plastic film cost is higher; External force such as aluminium coated is collided are slightly made the time spent electroplated metal layer and are prone to be destroyed, thereby considerable influence has limited its range of application to the barrier property of thin-film material.
The utility model content
The utility model embodiment provides a kind of paper laminated film, has higher barrier and mechanical strength in the hope of it, and environmental protection relatively.
For solving the problems of the technologies described above, the utility model embodiment provides following technical scheme:
The utility model embodiment provides a kind of paper laminated film, comprises at least successively:
First resin bed, layers of kraft paper, second resin bed, first adhesive layer, barrier layer, second adhesive layer and the 3rd resin bed.
Optional, said first resin bed, second resin bed or the 3rd resin bed are the polyvinyl resin layer.
Optional, said first adhesive layer and/or second adhesive layer are the adhesive layer that comprises polyethylene based adhesive.
Optional, said barrier layer is the barrier layer that comprises ethylene-vinyl alcohol copolymer.
Optional, the weight of said layers of kraft paper accounts for 35 to 65% of paper laminated film gross weight.
Optional, the weight of said layers of kraft paper accounts for 50% of paper laminated film gross weight
Therefore; The paper laminated film that the utility model embodiment provides comprises the paper synthetic material, wherein comprises layers of kraft paper, helps improving barrier and mechanical strength; And have outstanding gas barrier property, good oil resistivity and organic solvent resistance; Poisonous and harmful substances such as its not chloride He bioxin are capable of regeneration green materials, can environment not polluted; So can be widely used in, for example can be used for solid or liquid, need to protect the use of fragrant series products packing as in the cosmetic package.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of paper laminated film of providing of the utility model embodiment.
The specific embodiment
The utility model embodiment provides a kind of paper laminated film, has higher barrier and mechanical strength in the hope of it, and environmental protection relatively.
For making that utility model purpose, characteristic, the advantage of the utility model can be more obvious and understandable; To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; Obviously, the embodiments described below only are the utility model part embodiment, but not whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Below be elaborated respectively through specific embodiment.
Referring to Fig. 1, the structural representation of a kind of paper laminated film that Fig. 1 provides for the utility model embodiment.A kind of paper laminated film comprises at least successively: first resin bed 10, layers of kraft paper 20, second resin bed 30, first adhesive layer 40, barrier layer 50, second adhesive layer 60 and the 3rd resin bed 70.
In practical application, the weight of layers of kraft paper 20 for example accounts for 35 to 65% or other ratio of paper laminated film gross weight, and the weight of this layers of kraft paper 20 preferably accounts for about 50% of paper laminated film gross weight.
In practical application, first resin bed 10, second resin bed 30 and/or the 3rd resin bed 70 for example can comprise polyvinyl resin (PE) or other resin material.
First adhesive layer 40 and/or second adhesive layer 60 for example can comprise polyethylene based adhesive or other adhesive material.
The utility model embodiment also provides a kind of preparation method of paper laminated film, can comprise:
Five layers of composite membrane that second resin bed, first adhesive layer, barrier layer, second adhesive layer and the 3rd resin bed are formed in order are one-body molded through expressing technique;
Then obtain six layers of composite membrane with integrated five layers of composite membrane and layers of kraft paper are compound;
And then six layers of composite membrane input T types are extruded the curtain coating die orifice, make that extruding the first resin bed fusion curtain coating that the curtain coating die orifice extrudes from this T type obtains the paper laminated film in this layers of kraft paper of these six layers of composite membranes.
In practical application, the weight of the layers of kraft paper in the paper laminated film for example can account for 35 to 65% or other ratio of paper laminated film gross weight, and the weight of this layers of kraft paper preferably can account for about 50% of paper laminated film gross weight.
In practical application, first resin bed, second resin bed and/or the 3rd resin bed for example can comprise polyvinyl resin (PE) or other resin material.
First adhesive layer and/or second adhesive layer for example can comprise polyethylene based adhesive or other adhesive material.
Barrier layer for example can comprise ethylene-vinyl alcohol copolymer (EVOH) or other has the material of barrier property.
Therefore; The paper laminated film that the utility model embodiment provides comprises the paper synthetic material, wherein comprises layers of kraft paper, helps improving barrier and mechanical strength; And have outstanding gas barrier property, good oil resistivity and organic solvent resistance; Poisonous and harmful substances such as its not chloride He bioxin are capable of regeneration green materials, can environment not polluted; So can be widely used in, for example can be used for solid or liquid, need to protect the use of fragrant series products packing as in the cosmetic package.
Wherein, if shared ratio is near 50% in total for brown paper, then whole paper THIN COMPOSITE film strength and deflection can mainly be fixed against brown paper, can reduce the consumption of traditional petroleum-based plastics material simultaneously greatly.And the barrier property of whole film can be dependent on the barrier layer in five layers of composite membrane of coextrusion; Because five layers of composite membrane are the one extrusion molding; Barrier layer can comprise ethylene-vinyl alcohol copolymer, and barrier property is better relatively, does not exist to receive the external force effect and impaired phenomenon.
More than a kind of paper laminated film that the utility model embodiment is provided carried out detailed introduction; Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on the specific embodiment and range of application, all can change, to sum up, this description should not be construed as the restriction to the utility model.
Claims (6)
1. a paper laminated film is characterized in that, comprises at least successively:
First resin bed, layers of kraft paper, second resin bed, first adhesive layer, barrier layer, second adhesive layer and the 3rd resin bed.
2. paper laminated film according to claim 1 is characterized in that,
Said first resin bed, second resin bed or the 3rd resin bed are the polyvinyl resin layer.
3. paper laminated film according to claim 1 and 2 is characterized in that, said first adhesive layer and/or second adhesive layer are the adhesive layer that comprises polyethylene based adhesive.
4. paper laminated film according to claim 1 and 2 is characterized in that, said barrier layer is the barrier layer that comprises ethylene-vinyl alcohol copolymer.
5. paper laminated film according to claim 1 and 2 is characterized in that,
The weight of said layers of kraft paper accounts for 35 to 65% of paper laminated film gross weight.
6. paper laminated film according to claim 5 is characterized in that,
The weight of said layers of kraft paper accounts for 50% of paper laminated film gross weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203822832U CN202344972U (en) | 2011-10-10 | 2011-10-10 | Paper-plastic composite thin film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203822832U CN202344972U (en) | 2011-10-10 | 2011-10-10 | Paper-plastic composite thin film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202344972U true CN202344972U (en) | 2012-07-25 |
Family
ID=46533998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203822832U Expired - Fee Related CN202344972U (en) | 2011-10-10 | 2011-10-10 | Paper-plastic composite thin film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202344972U (en) |
-
2011
- 2011-10-10 CN CN2011203822832U patent/CN202344972U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141010 |
|
| EXPY | Termination of patent right or utility model |